When officers arrived, they were directed to the shooting victim, 24-year-old Ricky McCowin, who had been shot once in the head. McCowin was immediately transported to an area hospital where he later died.

Witnesses told police the gunman was seen running away from the building and a search for the man, later identified as 30-year-old Louis Anthony Davis, was under way.

At about 5 p.m., Grand Prairie police found Davis walking along the 1100 block of Avenue R. He was taken into custody without incident, charged with murder and is being held on $500,000 bond.

Police said Wednesday that Davis and McCowin were both employed by Crescent Processing Company, which had an office on the 4th floor of the building.